SMIRNOV, Sergey. On the areas under the oscillatory curves. Nonlinear Analysis: Modelling and Control, [S. l.], v. 22, n. 6, p. 785–792, 2017. DOI: 10.15388/NA.2017.6.4. Disponível em: https://www.journals.vu.lt/nonlinear-analysis/article/view/13361.. Acesso em: 7 may. 2024.